CN106191599A - A kind of high-strength high temperature-resistant creep resistance Dow metal and preparation method thereof - Google Patents
A kind of high-strength high temperature-resistant creep resistance Dow metal and preparation method thereof Download PDFInfo
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- CN106191599A CN106191599A CN201610844825.0A CN201610844825A CN106191599A CN 106191599 A CN106191599 A CN 106191599A CN 201610844825 A CN201610844825 A CN 201610844825A CN 106191599 A CN106191599 A CN 106191599A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
- C22C23/06—Alloys based on magnesium with a rare earth metal as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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Abstract
The present invention relates to specially a kind of high-strength high temperature-resistant creep resistance Dow metal and preparation method thereof, solve existing magnesium alloy and there is the problem that intensity difference, heat-resisting quantity difference and electrochemical corrosion resistant performance are low.A kind of high-strength high temperature-resistant creep resistance Dow metal, is made up of the raw material of following mass percent: gadolinium 8.0 11.0wt.%, yttrium 2.0 6.0wt.%, zirconium 0.4 1.0wt.%, nickel 0.001 0.002 wt.%, ferrum 0.001 0.005wt.%, surplus is magnesium and inevitable impurity.Magnesium alloy materials of the present invention tensile strength of its tensile sample after solution treatment can reach 365Mpa, yield strength can reach 260Mpa, elongation percentage can reach 5.5%, and can at high temperature long-term work, can be applicable to the high-strength high temperature-resistant creep resistant structural member in the high-tech sectors such as Aero-Space, automobile and military weapon.
Description
Technical field
The present invention relates to magnesium alloy technology of preparing, be specially a kind of high-strength high temperature-resistant creep resistance Dow metal and preparation side thereof
Method.
Background technology
Magnesium alloy feature is the lightest practical metal material, and density is little, and specific strength is high, bigger than elastic modelling quantity, and good heat dissipation disappears
Pinking is good, and the load-carrying ability that withstands shocks is bigger than aluminium alloy, resistance to Organic substance and the corrosion resistance and good of alkali.Magnesium alloy is widely used in
In portable apparatus and automobile industry, reach light-weighted purpose.
But, the application of current magnesium alloy there is also the technological difficulties awaiting solving, and is mainly manifested in three below
Aspect: 1, insufficient strength is high, it is impossible to for the manufacture of important feature part；2, at high temperature serviceability is decreased obviously, permanent worker
Make temperature and not can exceed that 120 DEG C；3, corrosion resistance especially electrochemical corrosion resistant performance is the highest.The above seriously constrains magnesium and closes
Gold is further applied in the field such as automobile and military project.
Summary of the invention
The present invention is to solve that existing magnesium alloy exists intensity difference, heat-resisting quantity difference and low the asking of electrochemical corrosion resistant performance
Topic, it is provided that a kind of high-strength high temperature-resistant creep resistance Dow metal and preparation method thereof.
The present invention adopts the following technical scheme that realization: a kind of high-strength high temperature-resistant creep resistance Dow metal, is by as follows
The raw material composition of mass percent: gadolinium 8.0-11.0 wt.%, yttrium 2.0-6.0 wt.%, zirconium 0.4-1.0wt.%, nickel
0.001-0.002 wt.%, ferrum 0.001-0.005wt.%, surplus is magnesium and inevitable impurity.
Magnesium alloy adds gadolinium and is remarkably improved intensity and the heat resistance of alloy.With magnesium can be formed secondary phase Mg3Gd,
Mg2Gd, Mg5Gd, play second-phase strength effect.
Yttrium and magnesium are close-packed hexagonal lattice, lattice paprmeter very close to, atomic radius is also more or less the same.According to metallic crystal
Grain nucleation core " dimensional structure matches " principle in principle, yttrium can become the heterogeneous crystallization nuclei of α-Mg, hinders crystal grain to grow up,
Magnesium alloy is had preferable Grain refinement, the second phase distributed patterns in alloy structure can be improved, thus alloy can be improved
Intensity.In magnesium gadolinium alloys when yttrium content is more than 3%, a large amount of Mg5 (Gd, Y) phase, tensile strength at peak point can be generated
Significantly improve mainly due to there is tiny dispersion β-Mg5 (Gd, Y) precipitated phase.
Zirconium can be with crystal grain thinning, and the Mg3Zr phase formed in alloy substrate can be as nucleation site during solidification, precipitated phase
The creep strength of magnesium alloy can be improved.After zirconium content reaches 0.8%, the effect of further crystal grain refinement is inconspicuous.
The preparation method of a kind of high-strength high temperature-resistant creep resistance Dow metal, uses following steps: a, with metal magnesium ingot, magnesium gadolinium
Intermediate alloy, magnesium yttrium intermediate alloy, Mg-Zr intermediate alloy, metallic nickel, metallic iron are as the raw material of element each in magnesium alloy, by upper
State mass percent and weigh corresponding raw material；B, being put into by the metal magnesium ingot weighed up and carry out melting in smelting furnace, smelting temperature is
650-660 DEG C, until magnesium ingot is completely melt to make Serum Magnesium；C, by Serum Magnesium from 650-660 DEG C gradually heat up be heated to 750-
780 DEG C, be gradually added into required gadolinium, yttrium, nickel, ferrum at this temperature, it is thus achieved that magnesium alloy fused mass I, subsequently by magnesium alloy fused mass I from
750-780 DEG C gradually heat up be heated to 780-800 DEG C, add required zirconium at this temperature, it is thus achieved that magnesium alloy fused mass II；D, general
Magnesium alloy fused mass II controls to add magnesium alloy special refining agent stirring 10-20min at a temperature of 750-760 DEG C and carries out refine,
It is subsequently added the special refining agent of magnesium alloy and carries out double refining, uniform stirring 20-30min, after refine, carry slag, remove liquid level
On flux and scum silica frost；E, the magnesium alloy fused mass II temperature after refine is warmed up to after 780-800 DEG C of static 20-30min, cold
But to 740-750 DEG C；F, be sampled analyze, cast under protective gas effect after composition is qualified, get product.
There is advantages that magnesium alloy materials after solution treatment the tensile strength of its tensile sample up to
To 365Mpa, yield strength can reach 260Mpa, and elongation percentage can reach 5.5%, and can at high temperature long-term work, can be applicable to
High-strength high temperature-resistant creep resistant structural member in the high-tech sectors such as Aero-Space, automobile and military weapon.
Detailed description of the invention
Embodiment 1
A kind of high-strength high temperature-resistant creep resistance Dow metal, is made up of the raw material of following mass percent: gadolinium 9.0wt.%, yttrium
4.0wt.%, zirconium 0.4wt.%, nickel 0.001wt.%, ferrum 0.005wt.%, surplus is magnesium and inevitable impurity.
The preparation method of a kind of high-strength high temperature-resistant creep resistance Dow metal, uses following steps: a, with metal magnesium ingot, magnesium gadolinium
Intermediate alloy, magnesium yttrium intermediate alloy, Mg-Zr intermediate alloy, metallic nickel, metallic iron are as the raw material of element each in magnesium alloy, by upper
State mass percent and weigh corresponding raw material；B, being put into by the metal magnesium ingot weighed up and carry out melting in smelting furnace, smelting temperature is
650 DEG C, until magnesium ingot is completely melt to make Serum Magnesium；C, by Serum Magnesium from 650 DEG C gradually heat up be heated to 750 DEG C, at this temperature
It is gradually added into required gadolinium, yttrium, nickel, ferrum under degree, it is thus achieved that magnesium alloy fused mass I, subsequently magnesium alloy fused mass I is gradually risen from 750 DEG C
Temperature is heated to 780 DEG C, adds required zirconium at this temperature, it is thus achieved that magnesium alloy fused mass II；D, magnesium alloy fused mass II is controlled
Add magnesium alloy special refining agent stirring 13min at a temperature of 750 DEG C and carry out refine, be subsequently added the special refining agent of magnesium alloy and enter
Row double refining, uniform stirring 24min, carry slag after refine, remove the flux on liquid level and scum silica frost；E, by the magnesium after refine
Alloy melt II temperature is warmed up to, after 788 DEG C of static 26min, be cooled to 745 DEG C；F, be sampled analyze, after composition is qualified
Cast under protective gas effect, get product.
The tensile strength of finished product is 365Mpa, and yield strength is 260Mpa, and elongation percentage is 5.5%.
Embodiment 2
A kind of high-strength high temperature-resistant creep resistance Dow metal, is made up of the raw material of following mass percent: gadolinium 10.0wt.%, yttrium
3.0wt.%, zirconium 0.6wt.%, nickel 0.002wt.%, ferrum 0.001wt.%, surplus is magnesium and inevitable impurity.
The preparation method of a kind of high-strength high temperature-resistant creep resistance Dow metal, uses following steps: a, with metal magnesium ingot, magnesium gadolinium
Intermediate alloy, magnesium yttrium intermediate alloy, Mg-Zr intermediate alloy, metallic nickel, metallic iron are as the raw material of element each in magnesium alloy, by upper
State mass percent and weigh corresponding raw material；B, being put into by the metal magnesium ingot weighed up and carry out melting in smelting furnace, smelting temperature is
660 DEG C, until magnesium ingot is completely melt to make Serum Magnesium；C, by Serum Magnesium from 660 DEG C gradually heat up be heated to 760 DEG C, at this temperature
It is gradually added into required gadolinium, yttrium, nickel, ferrum under degree, it is thus achieved that magnesium alloy fused mass I, subsequently magnesium alloy fused mass I is gradually risen from 760 DEG C
Temperature is heated to 790 DEG C, adds required zirconium at this temperature, it is thus achieved that magnesium alloy fused mass II；D, magnesium alloy fused mass II is controlled
Add magnesium alloy special refining agent stirring 15min at a temperature of 760 DEG C and carry out refine, be subsequently added the special refining agent of magnesium alloy and enter
Row double refining, uniform stirring 23min, carry slag after refine, remove the flux on liquid level and scum silica frost；E, by the magnesium after refine
Alloy melt II temperature is warmed up to, after 785 DEG C of static 27min, be cooled to 746 DEG C；F, be sampled analyze, after composition is qualified
Cast under protective gas effect, get product.
The tensile strength of finished product is 359Mpa, and yield strength is 256Mpa, and elongation percentage is 5.3%.
Embodiment 3
A kind of high-strength high temperature-resistant creep resistance Dow metal, is made up of the raw material of following mass percent: gadolinium 11.0 wt.%, yttrium
2.0wt.%, zirconium 0.7wt.%, nickel 0.001wt.%, ferrum 0.003wt.%, surplus is magnesium and inevitable impurity.
The preparation method of a kind of high-strength high temperature-resistant creep resistance Dow metal, uses following steps: a, with metal magnesium ingot, magnesium gadolinium
Intermediate alloy, magnesium yttrium intermediate alloy, Mg-Zr intermediate alloy, metallic nickel, metallic iron are as the raw material of element each in magnesium alloy, by upper
State mass percent and weigh corresponding raw material；B, being put into by the metal magnesium ingot weighed up and carry out melting in smelting furnace, smelting temperature is
660 DEG C, until magnesium ingot is completely melt to make Serum Magnesium；C, by Serum Magnesium from 660 DEG C gradually heat up be heated to 760 DEG C, at this temperature
It is gradually added into required gadolinium, yttrium, nickel, ferrum under degree, it is thus achieved that magnesium alloy fused mass I, subsequently magnesium alloy fused mass I is gradually risen from 760 DEG C
Temperature is heated to 800 DEG C, adds required zirconium at this temperature, it is thus achieved that magnesium alloy fused mass II；D, magnesium alloy fused mass II is controlled
Add magnesium alloy special refining agent stirring 18min at a temperature of 760 DEG C and carry out refine, be subsequently added the special refining agent of magnesium alloy and enter
Row double refining, uniform stirring 27min, carry slag after refine, remove the flux on liquid level and scum silica frost；E, by the magnesium after refine
Alloy melt II temperature is warmed up to, after 785 DEG C of static 30min, be cooled to 743 DEG C；F, be sampled analyze, after composition is qualified
Cast under protective gas effect, get product.
The tensile strength of finished product is 350Mpa, and yield strength is 246Mpa, and elongation percentage is 5.0%.
Claims (2)
1. a high-strength high temperature-resistant creep resistance Dow metal, it is characterised in that: it is made up of the raw material of following mass percent: gadolinium
8.0-11.0 wt.%, yttrium 2.0-6.0 wt.%, zirconium 0.4-1.0wt.%, nickel 0.001-0.002 wt.%, ferrum 0.001-
0.005wt.%, surplus is magnesium and inevitable impurity.
The preparation method of a kind of high-strength high temperature-resistant creep resistance Dow metal the most according to claim 1, it is characterised in that: adopt
With following steps: a, with metal magnesium ingot, magnesium gadolinium intermediate alloy, magnesium yttrium intermediate alloy, Mg-Zr intermediate alloy, metallic nickel, metallic iron
As the raw material of element each in magnesium alloy, weigh corresponding raw material by above-mentioned mass percent；B, the metal magnesium ingot weighed up is put
Entering and carry out melting in smelting furnace, smelting temperature is 650-660 DEG C, until magnesium ingot is completely melt to make Serum Magnesium；C, by Serum Magnesium
Gradually heat up from 650-660 DEG C and be heated to 750-780 DEG C, be gradually added into required gadolinium, yttrium, nickel, ferrum at this temperature, it is thus achieved that magnesium
Alloy melt I, gradually heats up magnesium alloy fused mass I from 750-780 DEG C subsequently and is heated to 780-800 DEG C, add at this temperature
Required zirconium, it is thus achieved that magnesium alloy fused mass II；D, magnesium alloy fused mass II is controlled at a temperature of 750-760 DEG C add magnesium alloy special
Carry out refine with refining agent stirring 10-20min, be subsequently added the special refining agent of magnesium alloy and carry out double refining, uniform stirring 20-
30min, carries slag after refine, remove the flux on liquid level and scum silica frost；E, by after refine magnesium alloy fused mass II temperature heat up
To after 780-800 DEG C of static 20-30min, it is cooled to 740-750 DEG C；F, be sampled analyze, after composition is qualified protection gas
Cast under body effect, get product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610844825.0A CN106191599A (en) | 2016-09-23 | 2016-09-23 | A kind of high-strength high temperature-resistant creep resistance Dow metal and preparation method thereof |
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| CN201610844825.0A CN106191599A (en) | 2016-09-23 | 2016-09-23 | A kind of high-strength high temperature-resistant creep resistance Dow metal and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106676354A (en) * | 2017-01-13 | 2017-05-17 | 闻喜县瑞格镁业有限公司 | Heat-resistant, creep-resistant and corrosion-resistant magnesium alloy with good fluidity and preparation method of magnesium alloy |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101191168A (en) * | 2006-11-23 | 2008-06-04 | 北京有色金属研究总院 | Magnesium alloy and preparation method thereof |
| JP5309031B2 (en) * | 2006-09-13 | 2013-10-09 | マグネシウム エレクトロン リミテッド | Gadolinium-containing magnesium alloy |
| CN103388095A (en) * | 2013-07-18 | 2013-11-13 | 上海交通大学 | Mg-Gd-Y-Zr magnesium alloy and heat treatment method of large-scale complex casting prepared from the Mg-Gd-Y-Zr magnesium alloy |
| CN104388787A (en) * | 2014-11-18 | 2015-03-04 | 闻喜县瑞格镁业有限公司 | High-strength, corrosion-resistant and high-temperature creep-resistant magnesium alloy and preparation method thereof |
-
2016
- 2016-09-23 CN CN201610844825.0A patent/CN106191599A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5309031B2 (en) * | 2006-09-13 | 2013-10-09 | マグネシウム エレクトロン リミテッド | Gadolinium-containing magnesium alloy |
| CN101191168A (en) * | 2006-11-23 | 2008-06-04 | 北京有色金属研究总院 | Magnesium alloy and preparation method thereof |
| CN103388095A (en) * | 2013-07-18 | 2013-11-13 | 上海交通大学 | Mg-Gd-Y-Zr magnesium alloy and heat treatment method of large-scale complex casting prepared from the Mg-Gd-Y-Zr magnesium alloy |
| CN104388787A (en) * | 2014-11-18 | 2015-03-04 | 闻喜县瑞格镁业有限公司 | High-strength, corrosion-resistant and high-temperature creep-resistant magnesium alloy and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 沈宁福: "《新编金属材料手册》", 31 January 2003 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106676354A (en) * | 2017-01-13 | 2017-05-17 | 闻喜县瑞格镁业有限公司 | Heat-resistant, creep-resistant and corrosion-resistant magnesium alloy with good fluidity and preparation method of magnesium alloy |
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| CB02 | Change of applicant information |
Address after: 043800 Shanxi city of Yuncheng Province Wang Pei township of Wenxi county. Applicant after: Shanxi Reggae Metal New Material Co Ltd Address before: 043800 Shanxi city of Yuncheng Province Wang Pei township of Wenxi county. Applicant before: Wenxi County Regal Magnesium Co., Ltd. |
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Application publication date: 20161207 |
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| RJ01 | Rejection of invention patent application after publication |